imag/bin/domain/imag-timetrack/src/cont.rs

109 lines
3.8 KiB
Rust

//
// imag - the personal information management suite for the commandline
// Copyright (C) 2015, 2016 Matthias Beyer <mail@beyermatthias.de> and contributors
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; version
// 2.1 of the License.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
//
use std::cmp::Ord;
use filters::filter::Filter;
use itertools::Itertools;
use chrono::NaiveDateTime;
use libimagerror::trace::trace_error;
use libimagerror::trace::MapErrTrace;
use libimagerror::iter::TraceIterator;
use libimagtimetrack::timetrackingstore::TimeTrackStore;
use libimagtimetrack::timetracking::TimeTracking;
use libimagtimetrack::iter::filter::*;
use libimagrt::runtime::Runtime;
pub fn cont(rt: &Runtime) -> i32 {
rt.store()
.get_timetrackings()
.and_then(|iter| {
let groups = iter
// unwrap everything, trace errors
.trace_unwrap()
// I want all entries with an end time
.filter(|e| has_end_time.filter(&e))
// Now group them by the end time
.group_by(|elem| match elem.get_end_datetime() {
Ok(Some(dt)) => dt,
Ok(None) => {
// error. We expect all of them having an end-time.
error!("Has no end time, but should be filtered out: {:?}", elem);
error!("This is a bug. Please report.");
error!("Will panic now");
panic!("Unknown bug")
}
Err(e) => {
trace_error(&e);
NaiveDateTime::from_timestamp(0, 0) // placeholder
}
});
// sort the trackings by key, so by end datetime
let elements = {
let mut v = vec![];
for (key, value) in groups.into_iter() {
v.push((key, value));
}
v.into_iter()
.sorted_by(|t1, t2| {
let (k1, _) = *t1;
let (k2, _) = *t2;
Ord::cmp(&k1, &k2)
})
.into_iter()
// get the last one, which should be the highest one
.last() // -> Option<_>
};
match elements {
Some((_, trackings)) => {
// and then, for all trackings
trackings
.fold(Ok(0), |acc, tracking| {
debug!("Having tracking: {:?}", tracking);
acc.and_then(|_| {
// create a new tracking with the same tag
tracking
.get_timetrack_tag()
.and_then(|tag| rt.store().create_timetracking_now(&tag))
.map(|_| 0)
.map_err_trace()
})
})
},
None => {
info!("No trackings to continue");
Ok(1)
},
}
})
.map(|_| 0)
.map_err_trace()
.unwrap_or(1)
}